Mercedes-Benz GLC63 AMG S Oil is leaking into spark plug well Inspection at your home or office.

Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM.

Estimate price near me

Service Location

Customer Ratings

(4)

How A Diagnostic Works

Instantly book a certified mobile mechanic to come to you

Mechanic diagnoses the problem and quotes necessary repairs

Your vehicle is ready to go

Fair, upfront & transparent pricing for all services

Our certified mobile mechanics can come to you now.

Customer Ratings

(4)

Oil is leaking into spark plug well Inspection Service

How much does a Oil is leaking into spark plug well Inspection cost?

On average, the cost for a Mercedes-Benz GLC63 AMG S Oil is leaking into spark plug well Inspection is $95 with $0 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2021 Mercedes-Benz GLC63 AMG SV8-4.0L TurboService typeOil is leaking into spark plug well InspectionEstimate$114.99Shop/Dealer Price$124.99 - $132.49
2019 Mercedes-Benz GLC63 AMG SV8-4.0L TurboService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2018 Mercedes-Benz GLC63 AMG SV8-4.0L TurboService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$105.01 - $112.52
2020 Mercedes-Benz GLC63 AMG SV8-4.0L TurboService typeOil is leaking into spark plug well InspectionEstimate$94.99Shop/Dealer Price$104.99 - $112.48
Show example Mercedes-Benz GLC63 AMG S Oil is leaking into spark plug well Inspection prices

Oil leaking into the spark plug wells is an indictor of a fairly serious problem that should be inspected and repaired immediately. It is almost always due to a failing gasket or O-ring but can also be the result of a failing piston or worn valve guides.

Oil making its way into the spark plug wells will drastically affect the engines performance, leading to misfires, increased oil consumption and blue exhaust. In extreme cases, it can even lead to an engine fire. If the vehicle is exhibiting any of these symptoms, the spark plugs should be inspected immediately.

How this system works:

his issue involves two systems, the spark plugs and the engine lubrication system.

The main function of a spark plug is to ignite the fuel/air mixture in the combustion chamber. Electrical energy is transmitted through the spark plug where it jumps the gap and the spark ignites the gasoline and air mixture. Spark plugs also pull heat out of the combustion chamber, working as a heat exchanger, it pulls thermal energy from the combustion chamber and transfers it to the cooling system.

Engine oil is used to lubricate the moving parts of an engine. The constant moving of the engine parts generates heat, as well as wear and tear. Engine oil helps to minimize the friction and dissipates the heat generated by the engine.

The oil pan is where engine oil is stored. A typical oil pan will hold up to 6 quarts of oil. When the engine starts, the oil pump pulls oil from the oil pan through a part called the pickup tube. The oil then moves to the oil filter, which removes dirt and debris before it is sent to the various parts of the engine via spurt holes. Eventually it heads back to the oil pan to start the process over again.

Common reasons for this to happen:

  • Leaking Valve Cover Gaskets: The valve cover is a metal part found on the top of the engine, which seals the engine and helps prevent oil leaks. Between the valve cover and the engine are gaskets that tend to fail over time. Due to the high temperature of the engine the gaskets can get brittle, and start to leak. It is possible for the oil to leak into the spark plug wells. Leaking valve cover gaskets need to be repaired as quickly as possible, failing to do so can lead to further damage to the engine.

  • Failing O-Ring Seals: There are O-Ring seals at the bottom of the spark plug wells and if a seal starts to fail, oil can leak past these seals and into the spark plug well. Again, this issue should be repaired as soon as possible and the spark plugs should be changed as well.

  • Failing Piston Compression Rings: The pistons in a car’s engine have compression rings at the top of the piston and the bottom. These rings are set in grooves in the piston and help scrape excess oil from the cylinder walls and prevent oil from getting into the combustion chamber. If these rings fail, oil can make its way into the spark plugs wells. Other symptoms of failing compression rings include increased exhaust that is blue and smells oily.

  • Failing Piston: A piston that is running too hot can develop a hole or crack. The most common symptoms of a failing piston include rattle and knocking noises while the car is running, excessive oil burning as well as a loss of power and engine misfiring. It can also lead to oil in the spark plug wells. This is an extremely serious condition that needs to be repaired as soon as possible.

  • Worn Valve Guides: Valve guides help to regulate air intake by keeping the valves in place while the engine is running. Over time, valve guides can become extremely worn and will require replacement. Blue smoke and oil or ash in the spark plug wells is a common symptom of failing valve guides. Worn valve guides can lead to more serious engine problems and should be repaired as soon as possible.

What to expect:

A top-rated mobile mechanic will come to your home or office to determine the source and cause of the Oil in Spark Plug Well issue, ​and will then provide a detailed inspection report that includes the scope and cost of the necessary repairs.

How it's done:

A mechanic will check your valve cover gaskets, O-Ring seals, pistons and other important components. The mechanic may need to crank the car and test drive it to pinpoint the cause of the leak and produce an accurate diagnosis.

How important is this service?

Oil in a spark plug well is a very serious problem that should be repaired as soon as possible. It can do extensive damage to the engine, such as broken or warped pistons and valves. Eventually, if not repaired, the head gasket can result in the fatal destruction of the engine. There is also the potential for an engine fire if the spark plugs ignite the oil.

Fast and easy service at your home or office

Backed by 12-month, 12.000-mile guarantee


Meet some of our expert Mercedes-Benz mechanics

Real customer reviews from Mercedes-Benz owners like you.

Excellent Rating

(4)

Rating Summary
3
0
0
0
1
3
0
0
0
1

Dellano

18 years of experience
520 reviews
Dellano
18 years of experience
Mercedes-Benz ML350 V6-3.7L - Oil is leaking into spark plug well - Bowie, Maryland
Excellent

Peter

28 years of experience
526 reviews
Peter
28 years of experience
Mercedes-Benz SLK230 L4-2.3L Turbo - Oil is leaking into spark plug well Inspection - Los Angeles, California
Peter was so patient and kind and put up with my unendless barrage of questions. He gave me tons of tips on how to save money while keeping my car in top shape. He came early and finished in less than half of his estimated repair time. I can not recommend him enough!!!

Nazareth

27 years of experience
285 reviews
Nazareth
27 years of experience
Mercedes-Benz C250 L4-1.8L Turbo - Oil is leaking into spark plug well Inspection - Covina, California
Very informative and awesome customer service!!!

Ronald

41 years of experience
329 reviews
Ronald
41 years of experience
Mercedes-Benz E320 V6-3.2L - Alternator Repair - Houston, Texas
Excellent mechanic, it was a generally simple process anyway. Was happy to swap in the part I bought myself. Appreciate the savings

Excellent Rating

(4)

Rating Summary
3
0
0
0
1
3
0
0
0
1
Number of Mercedes-Benz Oil is leaking into spark plug well Inspection services completed
44+
services done by our mechanics
TOTAL NUMBER OF EXPERT Mercedes-Benz MECHANICS
1100+
experts on our platform

Recent articles & questions

How to Check If Your Car Has Recalls
Although Although automobile manufacturers take many precautions to ensure the safety of the vehicles they sell, defects do sometimes escape initial notice. Whether these defects arise as the result of insufficient testing of new technology or from a substandard batch...
How to Buy a Good Quality Valve Cover Gasket
When When you open the hood of your car to take a look at your engine, you'll find it is kept safe with a valve cover. What keeps this valve cover in place and not moving around is the valve...
P2254 OBD-II Trouble Code: O2 Sensor Negative Current Control Circuit/Open Bank 2 Sensor 1
P2254 P2254 code definition O2 sensor negative current control circuit/open bank 2 sensor 1 What the P2254 code means This trouble code indicates that the powertrain control module has detected a reference voltage from the O2 sensor that is upstream...

Dashboard lights flash and then go out

Hello there, thank you for asking about your 1987 Oldsmobile Toronado. This is something that would require first hand inspection for complete diagnosis. However, there is a technical service bulletin (TSB) that may pertain to your issue. The TSB is...

Car does not engage drive when cold, after it warms up shift into drive with no problem. No grinding ect.

The oil pump in your transmission is probably worn out. The oil pump produces the hydraulic pressure that the transmission uses to engage the forward clutch. As the transmission warms up and some of the clearances tighten up, there is...

My car is shaking and I just changed my spark plugs

Shaking or vibration (https://www.yourmechanic.com/services/engine-is-shaking-pulsating-or-vibrating-inspection) may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve (https://www.yourmechanic.com/services/idle-control-valve-replacement) may cause the engine idle to drop below...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com